Frederick a



(No Model.)

I. A. LANE.

CLOCK MOVBMENT.. v No. 317,380. PatentedMay 5, 1885.

UNITED STATES PATENT OFFICE,

FREDERICK A. LANE, OF NEIV HAVEN, CONNECTICUT, ASSIGNOR TO THE NEW HAVEN CLOCK COMPANY, OF SAME PLACE.

CLOCK-MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 317,380, dated May 5, 1885.

Application filed February 2, 1885.

To all whom it may concern:

Be it known that I, FREDERICK A. LANE, of New Haven, in the county of New Haven and State of Connecticut, have invented a new Improvement in Clock-Movements; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, a front view of the movement,the dial removed; Fig. 2, the front plate removed, showing a front View of the intermediate plate with the train; Fig. 3, the intermediate plate removed, showing the rear plate, main arbor, and center arbor and pinion; Fig. i, a side view of the movement complete,looking from .the left; Fig. 5, a sectional view through the plates, showing a top view of the main wheel,

center arbor, its wheels and pinions, and

pointer-train.

This invention relates to an improvement in clock -movements with special reference to the smaller class, and particularly to those in which the movement is of circular shape.

In the more general construction of this class of movements the center arbor is arranged directly in the center of the movement and of the dial, and the main wheel and springbarrel concentric therewith, the center arbor passing through the main wheel and springbarrel, it being understood that this class of clocks are constructed so that the spring is wound and the pointers set at the back. In this construction the setting device necessarily extends through the winding device, or vice versa, the one being concentric with the other. Because of this concentric arrangement of the center arbor, main wheel, and spring not only is the mechanism complicated, but there is great liability of conflict between the winding and set-ting mechanism.

The object of my invention is to avoid this necessary arrangement of the main wheel, the spring, and center arbor, and yet not increase the dimensions of the movement as a whole.

. To this end my invention consists in a threeplate frame, the main wheel arranged between (No model.)

the rear and intermediate plate,at one side of the center, the center arbor at the opposite side of the center and extending through the three plates fromfront to rear, provided at its rear end with a device by which it may be turned, and at its front end provided with a gear to work into the pointer-gears, whereby through this said center arbor (out of the center) the pointers may be readily adjusted, and as more fully hereinafter described.

A represents the front plate B, the rear plate; C, the intermediate plate of the frame, the three plates connected by pillars D, more or less in number.

Between the rear plate, B, and intermediate plate, C, the main wheel E is arranged upon an arbor, F, at one side of the center, the shaft taking its bearingin the rear and intermediate plate, extends through the rear plate, and projecting therefrom is provided with a winding device, G. This arbor and main wheel carry the usual spring-barrels, I-I. Upon the opposite side of the center of the plates the center arbor, I, is arranged to extend through the three plates, so as to take its bearing in the front and rear plates. Loosely on this arbor the center wheel, J, and center pinion, K, are arranged in the usual manner, they being coupled with the arbor in the usual manner, but so as to leave the arbor free to be turned independent of the center wheel and its pinion. Outside the rear plate, and upon the end of the arbor I, a convenient knob, L, is fixed, by which the arbor I may be turned independent of the center wheel, J. The arbor also extends outside the front plate, A, where it is provided with a gear-wheel, a, which works into a gear, Z), loose on a post, (I, fixed in the center of the front plate. The two gears a I) have the same number of teeth, so that a single rotation of the center arbor imparts asingle full rotation to the wheel I). The wheel b carries a pinion, e, and a sleeve, 1, and loose upon the sleeve f is a gear, 9. Between the pinion c and the gear 9 is a counter-wheel, z, and pinion 2, (see Figs. 1 and 4,) by which one revolution is imparted to the wheel 9 to twelve revolutions of the wheel I). The wheel 9 is provided with a sleeve, on. The pointers are fixed, the minutepointer to the sleeve f and the hour-pointer to the sleeve m. Between the front and intermediate plates the remaining wheels of the train are arranged to communicate the power to the balance, as seen in Figs. 2 and 4.

By thus arranging the arbor of the main wheel at one side of the center,and the center wheel at the opposite side of the center, I am enabled to avoid the extension of the center arbor through themain wheel, each being independent of the other, as in an ordinary clock-movement, and this I accomplish without increasing the dimensions of the movement. The train from the main wheel to the balance is substantially that of a common clockmovement, differing only in the peculiar arrangement which Ihave described, and whereby such a movement is brought into the very compact space shown.

I have used the term center arbor in this specification, that being the usual term applied to the arbor which has one revolution per hour, and ordinarily carries the minute-pointer, and on which the center pinion and gear are loose, or so as to permit the turning of the arbor independent of the wheel, yet retaining such a connection between the wheel and arbor as will cause the wheel to drive the arbor.

I claim In a clock-movement, the frame consisting of the front plate, A, rear plate, B, and intermediate plate, G, the main wheel and its arbor arranged between the rear and intermediate plates at one side of the center, the center arbor, I, arranged upon the opposite side of the center and extending through the three plates, the main arbor and center arbor each provided at the rear with a device for independently turning the same, a post, d, fixed upon the out'sideof the front plate in a concentric position and carrying the pointerwheels, and a wheel, a, fixed to the outer end of the center arbor, I, and arranged to work into the pointer-wheels, that portion of the main train between the center wheel and balance arranged between the front and intermediate plates, substantially as described.

F. A. LANE.

Witnesses:

ANsoN G. PHELPS, W. M. WELLMAN. 

